1461188185543 has 2 divisors, whose sum is σ = 1461188185544. Its totient is φ = 1461188185542.

The previous prime is 1461188185511. The next prime is 1461188185547. The reversal of 1461188185543 is 3455818811641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1461188185543 - 2⁵ = 1461188185511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1461188185547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730594092771 + 730594092772.

It is an arithmetic number, because the mean of its divisors is an integer number (730594092772).

Almost surely, 2^{1461188185543} is an apocalyptic number.

1461188185543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461188185543 is an equidigital number, since it uses as much as digits as its factorization.

1461188185543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3686400, while the sum is 55.

The spelling of 1461188185543 in words is "one trillion, four hundred sixty-one billion, one hundred eighty-eight million, one hundred eighty-five thousand, five hundred forty-three".